Westlake Chemical Corporation shares owned by Thompson, Siegel, & Walmsley
Quarter-by-quarter ownership of Westlake Chemical Corporation (WLK) shares owned by Thompson, Siegel, & Walmsley
from 13F filings
Historical chart of Thompson, Siegel, & Walmsley investment in Westlake Chemical Corporation
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Quarterly reported holdings in Westlake Chemical Corporation by Thompson, Siegel, & Walmsley
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $34M | 441k | 77.06 |
| 2023-12-31 | $88k | 627 | 140.35 |
| 2023-09-30 | $78k | 627 | 124.40 |
| 2023-06-30 | $78k | 653 | 119.45 |
| 2023-03-31 | $76k | 653 | 116.39 |
| 2022-12-31 | $606k | 5.9k | 102.56 |
| 2022-09-30 | $2.8M | 28k | 100.00 |
| 2022-06-30 | $2.7M | 27k | 100.00 |
| 2020-03-31 | $488k | 13k | 38.13 |
| 2019-12-31 | $40M | 363k | 111.11 |
| 2019-09-30 | $69M | 624k | 111.11 |
| 2018-12-31 | $4.0k | 60 | 66.67 |
| 2018-09-30 | $5.0k | 60 | 83.33 |
| 2018-06-30 | $8.0k | 76 | 105.26 |
| 2018-03-31 | $8.0k | 76 | 105.26 |
| 2017-12-31 | $8.0k | 76 | 105.26 |
| 2017-09-30 | $7.0k | 81 | 86.42 |
| 2017-06-30 | $5.0k | 81 | 61.73 |
| 2017-03-31 | $5.0k | 81 | 61.73 |
| 2016-12-31 | $403k | 7.2k | 55.98 |
| 2016-09-30 | $17M | 381k | 45.45 |
| 2012-06-30 | $5.1M | 97k | 52.26 |
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